Discharging and shearing device of plastic extruding machine
By designing an extruder discharge shearing device that includes a receiving component, a sliding component, and a cutter, the problems of complex structure, high cost, and difficult maintenance of existing shearing devices are solved, achieving a low-cost and convenient shearing effect and avoiding production line downtime.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HATI ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-02-07
- Publication Date
- 2026-05-05
AI Technical Summary
Existing automatic shearing devices in extruders suffer from complex structures, high costs, and difficult maintenance, leading to frequent production line shutdowns for maintenance and increasing equipment backup costs.
An extruder discharge shearing device was designed, comprising a receiving component, a sliding component, a connecting component, and a cutter. It has a simple structure, can be temporarily replaced when the original equipment fails, and can achieve precise shearing through manual operation.
It achieves low-cost and convenient shearing function, avoiding production downtime due to equipment failure and reducing equipment standby costs.
Smart Images

Figure CN224197267U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shearing device technology, specifically to an extruder discharge shearing device. Background Technology
[0002] In the cable production process, extruders are widely used for extruding cable sheaths or insulation layers. Extruders melt plastic raw materials and extrude them into continuous cable coating layers, providing the necessary insulation protection and mechanical strength for the cables. During this process, the cables need to be cut to a predetermined length to ensure that the finished product specifications meet production requirements.
[0003] With the increasing demands for production efficiency and product quality in the cable industry, there is an urgent need for a device that can operate synchronously with extruders and achieve precise cutting. While some automatic cutting devices exist on the market, they generally suffer from complex structures, high costs, and difficult maintenance. Furthermore, production lines need to stop operating in the event of a malfunction. Purchasing a machine of equivalent cost as a backup would increase maintenance costs.
[0004] In view of the above, this application proposes an extruder discharge shearing device to solve the above problems. By setting up a low-cost and easy-to-maintain shearing device, it can be used as a temporary device when the original shearing equipment fails. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an extruder discharge shearing device, which solves the problems mentioned in the background section.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An extruder discharge shearing device includes,
[0008] The receiving component is configured to correspond to the discharge end of the extruder;
[0009] The upper cover is detachably mounted on the receiving component;
[0010] A sliding component is located on one side of the upper cover;
[0011] The connecting component is detachably mounted on the sliding component and reciprocates via the sliding component.
[0012] The cutter is detachably connected to the connecting component, and its cutting end is located within the receiving component to perform cutting work through the movement of the connecting component by the sliding component.
[0013] Optionally, the receiving component includes a housing, a guide shaft, and a positioning shaft;
[0014] The outer shell is provided corresponding to the discharge end of the extruder;
[0015] The guide shaft passes through the outer casing;
[0016] The positioning shaft is bolted to the housing.
[0017] Optionally, a cutting opening is provided in the middle of the guide shaft.
[0018] Optionally, a mounting shaft is fixedly connected to the lower side of the outer casing surface.
[0019] Optionally, the sliding assembly includes a fixed frame, a slider, a compression spring assembly, and a return spring assembly;
[0020] The fixing frame is installed on the upper side cover by bolts;
[0021] The slider moves linearly within the fixed frame.
[0022] One end of the compression spring assembly is connected to the slider, and the other end is connected to the upper side cover;
[0023] One end of the reset spring assembly is connected to the slider, and the other end is connected to the top wall inside the fixed frame.
[0024] Optionally, the connecting assembly includes a round rod and a handle;
[0025] One end of the round rod is detachably connected to the slider, and the other end is located at the top of the cutter;
[0026] The handle is connected to the cutter via a round rod.
[0027] Optionally, the cutter comprises an arc-shaped shaft and a blade shaft;
[0028] The arc-shaped shaft moves within the positioning shaft;
[0029] The cutter shaft is located on the lower side of the arc-shaped shaft and is positioned corresponding to the cutting opening.
[0030] This utility model provides a discharge shearing device for an extruder, which has the following advantages:
[0031] 1. By coordinating the receiving component, sliding component, connecting component, and cutter, a low-cost and easy-to-operate shearing device is constructed. Therefore, when the device is in standby mode, it does not increase the daily operating cost of the equipment. Furthermore, when the original equipment fails, the device can be immediately installed and connected for use. It features a simple structure and convenient maintenance. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the structure of this utility model;
[0033] Figure 2 This is a schematic diagram of the receiving component structure of this utility model;
[0034] Figure 3 This is a schematic diagram of the connecting component structure of this utility model.
[0035] In the diagram: 1. Receiving assembly; 11. Housing; 111. Mounting shaft; 121. Cutting opening; 12. Guide shaft; 13. Positioning shaft; 2. Upper side cover; 3. Sliding assembly; 31. Fixing frame; 32. Slider; 33. Compression spring assembly; 34. Return spring assembly; 4. Connecting assembly; 41. Round rod; 42. Handle; 5. Cutter; 51. Arc-shaped shaft; 52. Cutter shaft. Detailed Implementation
[0036] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0037] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0038] This application proposes a material shearing device for extruder discharge, as detailed below:
[0039] This application mainly consists of a receiving component 1 corresponding to the discharge end of the extruder, an upper cover 2 detachably mounted on the receiving component 1, a sliding component 3 located on one side of the upper cover 2, a connecting component 4 detachably mounted on the sliding component 3 and reciprocating through the sliding component 3, and a cutter 5 detachably connected to the connecting component 4. This realizes a manual shearing device. When the electric shearing equipment malfunctions, it can be replaced with a manual cutting device for use. In use, the relative movement of the cutter 5 is controlled by manipulating the movement of the connecting component 4 to achieve the shearing effect.
[0040] For reference Figure 1 The receiving component 1 is set to correspond to the discharge end of the extruder. If the shearing device used in daily operation fails, the cable to be cut can be introduced through the receiving component 1 to maintain normal operation and achieve a backup effect.
[0041] Among them, references are available. Figure 2 The receiving component 1 comprises three parts: a housing 11, a guide shaft 12, and a positioning shaft 13. The housing 11 is positioned corresponding to the extruder's discharge end, and a mounting shaft 111 is provided on the lower side of the housing 11 surface. The mounting shaft 111 is used to fix the device and ensure stable operation. The guide shaft 12 passes through the housing 11 and guides the cable from the extruder's discharge end into the guide shaft 12. As the cable passes through the guide shaft 12, the subsequent cutter 5 performs the cutting operation. The guide shaft 12 has a cutting opening 121, through which the cutter 5 enters the guide shaft 12 to cut the cable. The positioning shaft 13 is bolted to the housing 11 and is located above the guide shaft 12. The positioning shaft 13 is positioned corresponding to the cutter 5 and maintains the linear movement of the cutter 5 during its up-and-down movement, reducing the possibility of the cutter 5 deviating.
[0042] For reference Figure 1 To enable maintenance work inside the housing 11, a removable upper cover 2 is provided on the top of the housing 11. When a problem occurs inside, the upper cover 2 can be removed to perform maintenance inside.
[0043] For reference Figure 1 A sliding assembly 3 is provided to enable the linear up-and-down movement of the cutter 5. The sliding assembly 3 includes a fixed frame 31, a slider 32, a compression spring assembly 33, and a return spring assembly 34. The fixed frame 31 is bolted to the upper cover 2. The slider 32 moves linearly within the fixed frame 31. One end of the compression spring assembly 33 is connected to the slider 32, and the other end is connected to the upper cover 2. One end of the return spring assembly 34 is connected to the slider 32, and the other end is connected to the inner top wall of the fixed frame 31. Thus, when the slider 32 moves linearly up and down under the control of the fixed frame 31, the compression spring assembly 33 compresses when it moves downward. At this time, the movement of the slider 32 drives the cutter 5 to move downward to complete the cutting. After the cutting is completed, the slider 32 moves upward, and the return spring assembly 34 pulls the compression spring assembly 33 to complete the reset work, causing the cutter 5 to return to its original position.
[0044] It should be noted that both the compression spring assembly 33 and the return spring assembly 34 are equipped with telescopic rods to maintain the stable up-and-down movement of the springs. This is a common feature in the present invention, and will not be described in detail here.
[0045] For reference Figure 3To connect the sliding component 3 and the cutter 5, a connecting component 4 is provided, which includes a round rod 41 and a handle 42. One end of the round rod 41 is detachably connected to the slider 32, and the other end is located on the top of the cutter 5 and is detachably connected to the slider 32. This allows the cutter 5 to be disconnected from the connecting component 4 after disassembly, enabling subsequent processing. The handle 42 passes through the round rod 41 and connects to the cutter 5, stably connecting the cutter 5 to the round rod 41. Subsequently, the movement of the handle 42 causes the slider 32 to move up and down, which in turn drives the cutter 5 to move up and down. When replacing the cutter 5, the handle 42 can be disassembled, making the operation simple and convenient.
[0046] The cutter 5 consists of two parts: an arc-shaped shaft 51 and a cutter shaft 52. The arc-shaped shaft 51 moves within the positioning shaft 13. The arc-shaped design can reduce the weight of the equipment while maintaining normal movement. The cutter shaft 52 is located on the lower side of the arc-shaped shaft 51 and is set corresponding to the cutting opening 121. The cutter shaft 52 mainly plays the role of cutting.
[0047] In this invention, the working steps of the device are as follows:
[0048] 1. First, after fixing the receiving component 1 with the connecting bolts of the outer casing 11, connect the cable into the receiving component 1 and go inside;
[0049] 2. Next, by holding the handle 42, the slider 32 is driven to make linear motion on the fixed frame 31;
[0050] 3. Then, during the movement, the cutter 5 moves downward to cut the cable inside the guide shaft 12;
[0051] 4. Finally, the force on the gripping lever 42 is released, and the reset spring assembly 34 drives the slider 32 to move upward, completing the reset work.
[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A discharge shearing device for an extruder, characterized in that: include, The receiving component (1) is set to correspond to the discharge end of the extruder; The upper cover (2) is detachably mounted on the receiving component (1); A sliding component (3) is provided on one side of the upper cover (2); The connecting component (4) is detachably mounted on the sliding component (3) and reciprocates through the sliding component (3); The cutter (5) is detachably connected to the connecting component (4), and the cutting end of the cutter (5) performs cutting work within the receiving component (1) by means of the sliding component (3) moving the connecting component (4).
2. The extruder discharge shearing device according to claim 1, characterized in that: The receiving component (1) includes a housing (11), a guide shaft (12), and a positioning shaft (13); The outer shell (11) is provided corresponding to the discharge end of the extruder; The guide shaft (12) passes through the outer casing (11); The positioning shaft (13) is bolted to the housing (11).
3. The extruder discharge shearing device according to claim 2, characterized in that: The guide shaft (12) has a cutting opening (121) in the middle.
4. The extruder discharge shearing device according to claim 2, characterized in that: A mounting shaft (111) is fixedly connected to the lower side of the surface of the outer casing (11).
5. The extruder discharge shearing device according to claim 1, characterized in that: The sliding assembly (3) includes a fixed frame (31), a slider (32), a compression spring assembly (33), and a return spring assembly (34); The fixing frame (31) is installed on the upper side cover (2) by bolts; The slider (32) moves linearly within the fixed frame (31); One end of the compression spring assembly (33) is connected to the slider (32), and the other end is connected to the upper side cover (2); One end of the reset spring assembly (34) is connected to the slider (32), and the other end is connected to the inner top wall of the fixed frame (31).
6. The extruder discharge shearing device according to claim 5, characterized in that: The connecting assembly (4) includes a round rod (41) and a handle (42); One end of the round rod (41) is detachably connected to the slider (32), and the other end is located on the top of the cutter (5); The handle (42) is connected to the cutter (5) by a round rod (41) inserted through it.
7. The extruder discharge shearing device according to claim 3, characterized in that: The cutter (5) comprises an arc-shaped shaft (51) and a blade shaft (52); The arc-shaped shaft (51) moves within the positioning shaft (13); The cutter shaft (52) is located on the lower side of the arc-shaped shaft (51) and is set corresponding to the cutting opening (121).